Periodic mesh in a .xml file converted with dolfin-convert
Hi everyone, I have troubles in making a 2D periodic mesh for use with fenics. I have a .geo which is computed into a .msh file using "gmsh -2 file.geo -format msh2". I then get a .msh file which I convert in the xml format with "dolfin-c onvert file.msh file.xml". The command actually returns a .xml file but the mesh seems to be different from the one contained in the .msh file (the .msh file contains 98 elements whereas the .xml only contains 68 elements, though both fil es have the same number of nodes).